Samsung WM WF906U4SAGD/SP 9KG  2599/2680
Hitachi 510 series Big Drum FL WM BD-W85SV 2350/1750
Electrolux FL WM EWF14012 10KG  3120/3050
Electrolux FL WM EWF12022 10KG  2940/2850

*Shop 1
*Shop 2

i guess the shop 2 quote me a wrong price on Hitachi

location JB. i email them for the quotation. i think should be cheaper if go personally to their shop

Big different between Shop 1 and Shop 2 for Hitachi, I am still surveying the quality and reliability of Hitachi.

How about Panasonic NA-140VX3 vs Hitachi BD-W85SV? both also Japanese 

I'm thinking of these 3 Samsung WF1124XAC, Panasonic NA-140VX3 and Hitachi BD-W85SV.

bit concern about the drum capacity BD-W85SV just 8.5 kg wonder can fit the windows curtain?

mind to share which washing machine you use?
my windows curtain very long (around 8 ft) and thick, if can wash 2 3 times i don't mind i scare 1 also can't fit 

7 years? for me it's good investment already if no problem for so long period of time. 

What type of small problem? Lound sound? excessive vibration?

Maybe just call for a washing machine repairman to give the motor some slight lubrication will do...

My old washing machine refuse to die. Made in Japan Sanyo ASWU 100T lets see it followed me from the old apartment about 15 years, it developed a defect about 5 years ago. At the end of the cycle it does not stop completely and the clunk noise when its suppose to stop. Repair cost about rm700/=. I can live it that anomaly so I left it.

The problems I had with it was mainly the owners manuals were all in Nippon 

Now I am looking for something newer.

Prerequisites are :

a) low water consumption

b) low power consumption

c) hot water function

d) as durable as my old Sanyo

The one I am looking at is LG WF-HX120GV, LG site says it uses 16 liters of water per cycle I find this unbelievable.

hmmm lets see the relevance of your face palm...did it hurt ? 

Can be warm, its just to get the detergent to work harder. Thats what a chemical engineer I trust said, and I believe you can find more data on the net regarding this.

hot/warm water = less detergent = lower rinse cycle = less water.  less cycle = less power.

Which a lot of manufacturers take into account by using different incoming data like weight, water temperature etc etc.

Old skoolers who wash by hand for more times then the electricity gets cut would know what I mean.

For me everything goes into the machine, if its delicate then it goes into a mesh bag (I have a lot of mesh bags). If its dry care, it will get intoxicated at my fav dry cleaner who is too far away or if I get too lazy it goes into the machine and I press dry care. 

Any ways, I am just asking if there are any other top loaders which are efficient or even more efficient and durable..

Top loader is never water savers

Yup, need to put just enough detergent. And front loader need special low sud detergent. I need to educate and enforce my mum on how to operate it at first as she always think that no "buih" not clean. But now... yup, the front loader works great

But it is not apple to apple comparison as front load normally comes with hot water wash and also water pump so that your drain pipe can put higher 

while deciding for a new washer...

i have watched a few videos on utube how FL works,

i have noticed that...
...

Yup, heating up water indeed required a lot of power, but it maybe needed for baby clothing, or some other stubborn stains. It is an added feature which I think may come in handy once n a while

Ooo   I don't know that... hmmm  the engineer of the washing machine will not design using too lousy plastic I guess, else it it leaks... then complaint kao kao... but I target washing machine life span to be 7 years... so... already entering year 4 now . Keep my finger crossed

I uploaded a video I don't know whether this consider loud or not.

I put up a glass of water can see the vibration through the water, the pump on and off the whole video can hear clearly, at the end of the video the spinning noise like not balance vibrate a lot.

Not really useless. It's can serve as a guideline on how the machine is perform before you buy the actual thing or you can compare with different model or different brand machine that you have.
louder, quieter, less vibration? etc.
for long lasting of the product of course this video is not for that purpose.

If this Hitachi can last 7 years+ without giving me problem I'm more than happy de. 
btw I found the final spin for Panasonic VG4 as comparison.

forever. wao. You must be kidding right?
It is already a blessing if it can last through out the 8 years motor warranty period.
Besides, electic goods nowadyas aren't as lasting as they used to.

Lets compare both top loader (AJ-S80MX) and front loader (BD-W80MV) from Hitachi (source from the URL below)

Electrical and Mechanical Services Department Hong Kong

Brand--------Model------------------Annual Energy (kWh/Yr)------Water Consumption
HITACHI-----AJ-S80MV(8kg)-------40.3 (3.36 per month)---------127.7 (20 cycle = 2554l)
HITACHI-----BD-W80MV(8kg)------159(13.25 per month)---------48(20 cycle = 960l)

*base on Monthly Energy 13.25kWh = 20 cycle as cotton cycle around 0.68 kWh according to manual.
I) conclusion is TL use 1/4 Energy compare to FL but TL use 3X Water compare to FL.

II) so convert to dollar and cents in Selangor 1000 litre = RM0.57 so TL = RM1.46 and FL = RM0.55

III) 1 kWh = RM0.128 so TL = RM0.43 and FL = 1.7

IV) Total TL = RM1.89 and FL = RM2.25 per month (20 cycle)

V) personally I prefer FL as it's more gentle to clothing, my mom also notice the same as we switch from FL -> TL then back to FL 

VI) as for cost saving it's not that much different just 0.36 cents or 0.018 cents per cycle,  but the investment cost TL definitely cheaper than FL. 

hope this one help. 

Wow.. never thought that front load uses so much energy I guess rotating the drum horizontally needs more energy compare to spinning it vertically